2003 disco 11 engine running rough-check light blinking-found that the vacuum port SAI line was completly off the Vacuum Reseroir-could that make the engine run rough
Thanks

 

May be, what were the exact fault codes and how many miles on the truck?

 

org code p0441- only one left after the plugs and wires were replaced-running good up until a start up in the am. ran rough- noticed line off vacuum reservoir. 60,000 will attempt to get a vacuum line(hose) today and install ??

 

441 is an incorrect purge flow with the evap system and should not cause any issues with regards to how your engine runs.

 

I had my SAI pump vacuum reservoir line disconnected and it threw these codes:

P1412 SAI system fault (LH side) - air delivery not reaching catalysts
P1415 SAI system fault (RH side) - air delivery not reaching catalysts

But i had no issue with engine performance.

 

Thanks Mike: I will replace the vacuum line and go get the codes read again. I did not want to drive it to advance with the light blinking.

will it store the error codes if in fact it was the vacuum line
Thanks again
I should buy a obd11 ?? any inexpenseive ones out there?

 

http://www.roverparts.com/Parts/D3030.cfm
doesnt tell you what the codes mean, you get a bok with it that explains the codes
you can also link it to your puter and it can update itself and also link you to a site that explains what you gotta do to fix the problem, i own that same scanner but i dont use the site, i use this forum

 

Could anybody tell me the size dia. of the vacuum line-heading to parts store.
attached to the vacuum reservoir

 

its a small hose... but its not your problem, that small of a vac leak your engine can compinsate for enough to not have a misfire... double check your wires. also with the 441 code, make sure the purge valve is connected up right